I love Nuun! The grape the and tri-berry are my favorite flavors. As someone with lower salt to begin with, Nuun has been invaluable to me. I use them when I am working out - particularly running or during hot yoga and I will have a tab during the day even if I am not working out. I think they do a great job of helping with hydration, electrolytes, muscle spasms and headaches. They have also made a significant difference in lowering the frequency of my headaches. They reformulated the tabs a couple years ago and you can sometimes find the original formula, which I prefer a bit and comes in smaller tabs, on sale. If you do, definitely it because it is very much worth it.